Method of building levees and embankments.



A. PERRILLIAT. METHODOF BUILDING LEVEES AND EMBANKMENTS.

APPUCATION FILED OCT. 14. I915- Patsnted Sept. 17, 1918.

ARSENE PERRILLIAT, OF NEW ORLEANS, LOUISIANA.

METHOD OF BUILDING LEVEES AND EMBANKMENTS.

Application filed October 14, 1915.

To all whom it may concern:

Be it known that I, Ansimn PERRILLIAT, a citizen of the United States,residing at New Orleans, Orleans parish, State of Louisiana, haveinvented certain new and useful Improvements in Methods of BuildingLevees and Embankments, the following being a full, clear, and exactdisclosure of the one form of my invention which I at present deempreferable.

For a detailed description of the present form of my invention,reference may be had to the following specification and to theaccompanying drawings, which illustrate my invention.

My invention relates to a method of building levees and embankmentsparticularly designed for use in cases where the material forconstructing the levee or embankment, or enlarging an old one, must betaken from an extremely wide and shallow borrow-pit by means of anexcavator of the rotating derrick-boom type.

Referring to the drawing, 1 haveindicated at the left of the figure alevee L which, in this particular illustration. is in the nature of alevee to be enlarged to the extent indicated at E and the materialtherefor must be excavated from a wide pit extending from the levee tothe extreme right of the drawing.

I first station an excavator X of the aforesaid type at the point Awhich is at a distance from the outer edge of the pit about equal to theradius of action of the machine. From this point A the excavator ismoved from time to time, first along a straight route toward the leveeup to a point A then backward along a diagonal route to the point A andso on to thesuccessive points A*, A A, etc., as far as may be desired.This zig-zag path of travel of the excavator I have indicated by theparallel lines bounding the two sides of the path and showing the widthof path required by the excavator. The distance between the centers ofeach of the straight parallel portions of the aforesaid route is equalto the horizontal reach of the excavator less one-half the width of therequired trackway.

In the travel of the excavator from A to A it first excavates, whilestill at the station A along the extreme right-hand edge of theborrow-pit area bounded by the four points a a a ,.a and dumps the ma-Specification of Letters Patent.

Patented Sept. 17, 1918.

Serial No. 55,779.

terial therefrom along the extreme right hand edge;of the dumping areabounded by the four points (Z al (Z (Z It then proceeds to excavateprogressively from right to left within the said excavation area,leaving untouched however its diagonal track from A toward A and dumpsthe material progressively.from right to left over the said dumpingarea. When that has been completed the excavator is moved along thediagonal path from station A to station A It then excavates from rightto left over a second excavation area bounded by the four points a a a(i leaving untouched however its own path toward station A and depositsthe material progressively from right toleft over the second dumpingarea bounded by the four points (Z (Z (Z (F. In addition ,it excavatesit. own path behind it which had been left while it was excavating inthe first area. In like manner the machine is moved. next, to station Afrom which it is moved step by ste,

to station A while it digs within the third excavation'area bounded bythe fourpoints a 0. a a and deposits the n'iaterial in the thirddun'iping area (Z (Z cl, (Z .This creates a temporary pile of materialcovering the several dumping areas. When this has been continued as faras desired, the excavator is moved across the lower end of the temporarypile to the station 13 near the line to which the completed levee willreach. will excavate progressively, but in this case from left to right,over the areaembraced by the four points 0 c 0 0 including the thirddumping area aforesaid and depositing the material on that part of thelevee-extension between the four points Z Z Z Z It will be observed thatthe temporary dump aforesaid has been 'established on an area which isto be subsequently excavated and that part of the material which has tobe twice handled includes only that from the farther part of the pitwhile its second handling occurs in connection with the excavation ofthe nearer part of the pit. The machine then proceeds with itsoperations and is gradually brought to station B respecting however itstrack ahead of it and digging up its track behind it. From 13 theexcavator is moved diagonally from B to B where it begins to excavate,progressing from left to right,

From this station E the machine ceeds in a' the area within the points 00 0 0 including the dump (Z cl, (Z and to deposit the sameon the leveeWithin the area Z Z Z lflbut leaving its trackwayahead and digging upits trackway behind. like manner the final areac c 0 0 including thefirst dumping area aforesaid, is excavated and delivered on the area Z ZZ Z of the levee.

It will be now apparent that by this method a very wide and shallowborrowpit may be utilized to build the levee, without resort to otherapparatus than an ordinary excavator having aworking radius ofpracticable length.

hile I have described the operation as progressing from right to left,or, from left to right, such description is only illustrative, since, ineither case the progress may be in the opposite direction. The essentialfeature is that the excavation proline transverse to the line'of thelevee or embankment, progressing either toward it or away from it, andfrom the end 'of one series of such transverse exc'ai' ations the.machine is moved to the beginning of the next series.

1 WVhat I claim as new and desire to secure by Letters Patent is:

1'. T he method of building a levee or embankment. which consists inexcavating progressively at a series of points, in a directiontransverse to the line ofthe levee or embankment, the remoterportion of a berrow-pit; depositing, in a corresponding progressivemanner, the material thus excavated at an intermediate point of the pit;then excavating at a series of points also in the said transversedirection and progressively, the nearer portion of said pit includingthe above mentioned material, and

Copies of this patent may be obtained for finally depositing thematerial last excavated on the levee or embankment.

2. The method of building a levee or embankment, which consists inexcavating progressively at a series of points, in a directiontransverse to the line of the levee or embankment, the remoter portionof a borrow-pit; depositing the excavated material progressively on anintermediate unexcavated area of the pit and in a line parallel with thelevee or embankment, then excavating at a series of points, also in thesaid transverse direction and progressively, the nearer portion of saidpit including the material above mentioned, and finally depositing thematerial last excavated on the levee or embankment.

3. The method of building a levee or embankment, which consists inexcavating in on a succeeding portion of the pit in a direction parallelwith the levee or embank- 1 ment; then excavating in a similar series ofarcs the nearer portion of the pit, including the material previouslyexcavated, and depositing the material on the levee or embankment. p

In witness whereof I have hereunto set my hand, this fourth day ofOctober, 1915.

ARSENE PER-RILLIAT.

five cents each, by addressing the Commissioner of Patents, Washington,I) C. i

